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<a href="protocol__negotiator_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/* Flow-IPC: Core</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * Copyright 2023 Akamai Technologies, Inc.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Licensed under the Apache License, Version 2.0 (the</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> * &quot;License&quot;); you may not use this file except in</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * compliance with the License.  You may obtain a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> * of the License at</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *   https://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> *</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> * Unless required by applicable law or agreed to in</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * writing, software distributed under the License is</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> * CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * See the License for the specific language governing</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * permissions and limitations under the License. */</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"></span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">/// @file</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"></span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#include &quot;<a class="code" href="protocol__negotiator_8hpp.html">ipc/transport/protocol_negotiator.hpp</a>&quot;</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="preprocessor">#include &quot;<a class="code" href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">ipc/transport/error.hpp</a>&quot;</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#include &lt;flow/error/error.hpp&gt;</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceipc_1_1transport.html">ipc::transport</a></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span>{</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a427c54f57df581027a330eb0f7146904">   27</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a427c54f57df581027a330eb0f7146904">Protocol_negotiator::Protocol_negotiator</a>(flow::log::Logger* logger_ptr, <a class="code hl_typedef" href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">util::String_view</a> nickname,</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>                                         <a class="code hl_typedef" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">proto_ver_t</a> local_max_proto_ver, <a class="code hl_typedef" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">proto_ver_t</a> local_min_proto_ver) :</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>  flow::log::Log_context(logger_ptr, <a class="code hl_enumeration" href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">Log_component</a>::S_TRANSPORT),</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>  m_nickname(nickname),</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>  m_local_max_proto_ver(local_max_proto_ver),</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>  m_local_min_proto_ver(local_min_proto_ver),</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>  m_local_max_proto_ver_sent(false),</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>  m_negotiated_proto_ver(S_VER_UNKNOWN)</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>{</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>  assert((<a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac78f181ecd2ce58e18c6c90d3c03d230">m_local_min_proto_ver</a> &gt; 0) &amp;&amp; <span class="stringliteral">&quot;Broke contract.&quot;</span>);</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>  assert((<a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &gt;= <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac78f181ecd2ce58e18c6c90d3c03d230">m_local_min_proto_ver</a>) &amp;&amp; <span class="stringliteral">&quot;Broke contract.&quot;</span>);</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: We speak protocol version range &quot;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac78f181ecd2ce58e18c6c90d3c03d230">m_local_min_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>}</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a427c54f57df581027a330eb0f7146904">Protocol_negotiator::Protocol_negotiator</a>(<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp; src) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#ae24b3bd8550a2f9ab0d728cb1832d4f5">Protocol_negotiator::operator=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp; src) = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#aeb1b9e12cdfaa702c8a81b7ff81f1801">   46</a></span><a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a427c54f57df581027a330eb0f7146904">Protocol_negotiator::Protocol_negotiator</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp;&amp; src)</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>{</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>  <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#ae24b3bd8550a2f9ab0d728cb1832d4f5">operator=</a>(std::move(src));</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>}</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a3d141a0758b4d0fb51f43cefb76234a6">   51</a></span><a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp; <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#ae24b3bd8550a2f9ab0d728cb1832d4f5">Protocol_negotiator::operator=</a>(<a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp;&amp; src)</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>{</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>  <span class="keywordflow">if</span> (<span class="keyword">this</span> != &amp;src)</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>  {</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>    <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#ae24b3bd8550a2f9ab0d728cb1832d4f5">operator=</a>(<span class="keyword">static_cast&lt;</span><span class="keyword">const </span><a class="code hl_class" href="classipc_1_1transport_1_1Protocol__negotiator.html">Protocol_negotiator</a>&amp;<span class="keyword">&gt;</span>(src));</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>    <span class="comment">// This (which satisfies our contract, to make src as-if-just-cted) is the only reason we&#39;re not `= default`:</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>    src.reset();</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>  }</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>}</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a2b3448c9655fd1a83b8229957da1c4e2">   62</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a2b3448c9655fd1a83b8229957da1c4e2">Protocol_negotiator::reset</a>()</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>{</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#acd3f04dd8fd5181379d58fa9a25bf447">m_local_max_proto_ver_sent</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a> = <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#aa7e47f4f6a700aeaa9600a5426a17292">S_VER_UNKNOWN</a>;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>}</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a9596a28f6379b209ec1e7efcc58b8adc">   68</a></span><a class="code hl_typedef" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">Protocol_negotiator::proto_ver_t</a> <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a9596a28f6379b209ec1e7efcc58b8adc">Protocol_negotiator::negotiated_proto_ver</a>()<span class="keyword"> const</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="keyword"></span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a>;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>}</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a6e55a4ee1033bf98123cedd10e5726cb">   73</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a6e55a4ee1033bf98123cedd10e5726cb">Protocol_negotiator::compute_negotiated_proto_ver</a>(<a class="code hl_typedef" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">proto_ver_t</a> opposing_max_proto_ver, <a class="code hl_typedef" href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">Error_code</a>* err_code)</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>{</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>  FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(<span class="keywordtype">bool</span>, <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a6e55a4ee1033bf98123cedd10e5726cb">compute_negotiated_proto_ver</a>, opposing_max_proto_ver, _1);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span> </div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>  <span class="keywordflow">if</span> (<a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a9596a28f6379b209ec1e7efcc58b8adc">negotiated_proto_ver</a>() != <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#aa7e47f4f6a700aeaa9600a5426a17292">S_VER_UNKNOWN</a>)</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>  {</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    FLOW_LOG_TRACE(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: We were asked to compute negotiated protocol version &quot;</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>                   <span class="stringliteral">&quot;based on opposing max-version [&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;]; but we have already done so &quot;</span></div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>                   <span class="stringliteral">&quot;in the past (result: [&quot;</span> &lt;&lt; <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a9596a28f6379b209ec1e7efcc58b8adc">negotiated_proto_ver</a>() &lt;&lt; <span class="stringliteral">&quot;]); no-op.  &quot;</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>                   <span class="stringliteral">&quot;Tip: Check for negotiated_proto_ver()=UNKNOWN before calling us.&quot;</span>);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>  }</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>  <span class="comment">// else: As advertised we validate opposing_max_proto_ver for the caller first.</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span> </div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>  <span class="keywordflow">if</span> (opposing_max_proto_ver &lt;= 0)</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>  {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: Negotiation computation: &quot;</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>                     <span class="stringliteral">&quot;We speak preferred (highest) version [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>                     <span class="stringliteral">&quot;they speak at most [&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;].  The latter value is in and of itself &quot;</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>                     <span class="stringliteral">&quot;invalid -- we cannot trust the other side at all; or there may be a bug in user code here.  &quot;</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>                     <span class="stringliteral">&quot;Presumably we will abruptly close this comm pathway shorly.&quot;</span>);</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a> = <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a126eb85013fbeb11bcee34efbf0c79da">S_VER_UNSUPPORTED</a>;</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>    *err_code = <a class="code hl_enumvalue" href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a41cb789a6a5da26e1f72139206cb9adf">error::Code::S_PROTOCOL_NEGOTIATION_OPPOSING_VER_INVALID</a>;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span>  }</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>  <span class="comment">// Use the simple algorithm explained/justified in class doc header.</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;= opposing_max_proto_ver)</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>  {</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: Negotiation computation: &quot;</span></div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>                  <span class="stringliteral">&quot;We speak preferred (highest) version [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>                  <span class="stringliteral">&quot;they speak at most [&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;]; therefore we shall speak &quot;</span></div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>                  <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;], unless opposing side lacks backwards-compatibility with it, &quot;</span></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>                  <span class="stringliteral">&quot;in which case it will abruptly close this comm pathway shortly.&quot;</span>);</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a> = <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a>;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>  }</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (opposing_max_proto_ver &gt;= <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac78f181ecd2ce58e18c6c90d3c03d230">m_local_min_proto_ver</a>)</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>  {</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>    FLOW_LOG_INFO(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: Negotiation computation: &quot;</span></div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>                  <span class="stringliteral">&quot;We speak preferred (highest) version [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>                  <span class="stringliteral">&quot;they speak at most [&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;]; therefore we shall speak &quot;</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>                  <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;], as we are backwards-compatible with that version.&quot;</span>);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a> = <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a>;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>  }</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>  <span class="keywordflow">else</span></div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>  {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>    FLOW_LOG_WARNING(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: Negotiation computation: &quot;</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>                     <span class="stringliteral">&quot;We speak preferred (highest) version [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>                     <span class="stringliteral">&quot;they speak at most [&quot;</span> &lt;&lt; opposing_max_proto_ver &lt;&lt; <span class="stringliteral">&quot;]; therefore we lack backwards-compatibility &quot;</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>                     <span class="stringliteral">&quot;with that older version.  Presumably we will abruptly close this comm pathway shorly.&quot;</span>);</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">m_negotiated_proto_ver</a> = <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a126eb85013fbeb11bcee34efbf0c79da">S_VER_UNSUPPORTED</a>;</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>    *err_code = <a class="code hl_enumvalue" href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a594bf33052a89403c734f24428007c80">error::Code::S_PROTOCOL_NEGOTIATION_OPPOSING_VER_TOO_OLD</a>;</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>  }</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>} <span class="comment">// Protocol_negotiator::compute_negotiated_proto_ver()</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"><a class="line" href="classipc_1_1transport_1_1Protocol__negotiator.html#a54480f0849ddb5635302b42ed87c43af">  130</a></span><a class="code hl_typedef" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">Protocol_negotiator::proto_ver_t</a> <a class="code hl_function" href="classipc_1_1transport_1_1Protocol__negotiator.html#a54480f0849ddb5635302b42ed87c43af">Protocol_negotiator::local_max_proto_ver_for_sending</a>()</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>{</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>  <span class="keywordflow">if</span> (<a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#acd3f04dd8fd5181379d58fa9a25bf447">m_local_max_proto_ver_sent</a>)</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>  {</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#aa7e47f4f6a700aeaa9600a5426a17292">S_VER_UNKNOWN</a>; <span class="comment">// Don&#39;t spam logs; they might be calling this for every out-message.</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>  }</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>  <span class="comment">// else</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>  FLOW_LOG_INFO(<span class="stringliteral">&quot;Protocol_negotiator [&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">m_nickname</a> &lt;&lt; <span class="stringliteral">&quot;]: About to send our preferred (highest) version &quot;</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a> &lt;&lt; <span class="stringliteral">&quot;] to opposing side for the first and only time.&quot;</span>);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>  <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#acd3f04dd8fd5181379d58fa9a25bf447">m_local_max_proto_ver_sent</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>  <span class="keywordflow">return</span> <a class="code hl_variable" href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">m_local_max_proto_ver</a>;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>}</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>} <span class="comment">// namespace ipc::transport</span></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html">ipc::transport::Protocol_negotiator</a></div><div class="ttdoc">A simple state machine that, assuming the opposide side of a comm pathway uses an equivalent state ma...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00189">protocol_negotiator.hpp:191</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a126eb85013fbeb11bcee34efbf0c79da"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a126eb85013fbeb11bcee34efbf0c79da">ipc::transport::Protocol_negotiator::S_VER_UNSUPPORTED</a></div><div class="ttdeci">static constexpr proto_ver_t S_VER_UNSUPPORTED</div><div class="ttdoc">A proto_ver_t value, namely zero, which is a reserved value indicating &quot;unsupported version&quot;; it is n...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00208">protocol_negotiator.hpp:208</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a2b3448c9655fd1a83b8229957da1c4e2"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a2b3448c9655fd1a83b8229957da1c4e2">ipc::transport::Protocol_negotiator::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">Resets the negotiation state, meaning back to the state as-if just after ctor invoked.</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8cpp_source.html#l00062">protocol_negotiator.cpp:62</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a35ddd3050b39af2881ffc1e97c84f69c"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a35ddd3050b39af2881ffc1e97c84f69c">ipc::transport::Protocol_negotiator::m_nickname</a></div><div class="ttdeci">std::string m_nickname</div><div class="ttdoc">The nickname from ctor. Not const so as to support copyability.</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00346">protocol_negotiator.hpp:346</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a35fb3885d39f11d0c1f7860e64194592"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a35fb3885d39f11d0c1f7860e64194592">ipc::transport::Protocol_negotiator::proto_ver_t</a></div><div class="ttdeci">int16_t proto_ver_t</div><div class="ttdoc">Type sufficient to store a protocol version; positive values identify newer versions of a protocol; w...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00199">protocol_negotiator.hpp:199</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a427c54f57df581027a330eb0f7146904"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a427c54f57df581027a330eb0f7146904">ipc::transport::Protocol_negotiator::Protocol_negotiator</a></div><div class="ttdeci">Protocol_negotiator(flow::log::Logger *logger_ptr, util::String_view nickname, proto_ver_t local_max_proto_ver, proto_ver_t local_min_proto_ver)</div><div class="ttdoc">Constructs a comm pathway's negotiator object in initial state wherein: (1) negotiated_proto_ver() re...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8cpp_source.html#l00027">protocol_negotiator.cpp:27</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a54480f0849ddb5635302b42ed87c43af"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a54480f0849ddb5635302b42ed87c43af">ipc::transport::Protocol_negotiator::local_max_proto_ver_for_sending</a></div><div class="ttdeci">proto_ver_t local_max_proto_ver_for_sending()</div><div class="ttdoc">To be called at most once, this returns local_max_proto_ver from ctor the first time and S_VER_UNKNOW...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8cpp_source.html#l00130">protocol_negotiator.cpp:130</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a6e55a4ee1033bf98123cedd10e5726cb"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a6e55a4ee1033bf98123cedd10e5726cb">ipc::transport::Protocol_negotiator::compute_negotiated_proto_ver</a></div><div class="ttdeci">bool compute_negotiated_proto_ver(proto_ver_t opposing_max_proto_ver, Error_code *err_code=0)</div><div class="ttdoc">Based on the presumably-just-received-from-opposing-side value of their local_max_proto_ver,...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8cpp_source.html#l00073">protocol_negotiator.cpp:73</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a7365678b968b2afb5428ca15a017e120"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a7365678b968b2afb5428ca15a017e120">ipc::transport::Protocol_negotiator::m_local_max_proto_ver</a></div><div class="ttdeci">proto_ver_t m_local_max_proto_ver</div><div class="ttdoc">local_max_proto_ver from ctor. Not const so as to support copyability.</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00349">protocol_negotiator.hpp:349</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_a9596a28f6379b209ec1e7efcc58b8adc"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#a9596a28f6379b209ec1e7efcc58b8adc">ipc::transport::Protocol_negotiator::negotiated_proto_ver</a></div><div class="ttdeci">proto_ver_t negotiated_proto_ver() const</div><div class="ttdoc">Returns S_VER_UNKNOWN before compute_negotiated_proto_ver(); then either the positive version of the ...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8cpp_source.html#l00068">protocol_negotiator.cpp:68</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_aa7e47f4f6a700aeaa9600a5426a17292"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#aa7e47f4f6a700aeaa9600a5426a17292">ipc::transport::Protocol_negotiator::S_VER_UNKNOWN</a></div><div class="ttdeci">static constexpr proto_ver_t S_VER_UNKNOWN</div><div class="ttdoc">A proto_ver_t value, namely a negative one, which is a reserved value indicating &quot;unknown version&quot;; i...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00215">protocol_negotiator.hpp:215</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_ac30508df0ea2af8a990f9cd60a694fd1"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#ac30508df0ea2af8a990f9cd60a694fd1">ipc::transport::Protocol_negotiator::m_negotiated_proto_ver</a></div><div class="ttdeci">proto_ver_t m_negotiated_proto_ver</div><div class="ttdoc">See negotiated_proto_ver().</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00358">protocol_negotiator.hpp:358</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_ac78f181ecd2ce58e18c6c90d3c03d230"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#ac78f181ecd2ce58e18c6c90d3c03d230">ipc::transport::Protocol_negotiator::m_local_min_proto_ver</a></div><div class="ttdeci">proto_ver_t m_local_min_proto_ver</div><div class="ttdoc">local_min_proto_ver from ctor. Not const so as to support copyability.</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00352">protocol_negotiator.hpp:352</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_acd3f04dd8fd5181379d58fa9a25bf447"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#acd3f04dd8fd5181379d58fa9a25bf447">ipc::transport::Protocol_negotiator::m_local_max_proto_ver_sent</a></div><div class="ttdeci">bool m_local_max_proto_ver_sent</div><div class="ttdoc">Init value false indicating has local_max_proto_ver_for_sending() has not been called; subsequently t...</div><div class="ttdef"><b>Definition:</b> <a href="protocol__negotiator_8hpp_source.html#l00355">protocol_negotiator.hpp:355</a></div></div>
<div class="ttc" id="aclassipc_1_1transport_1_1Protocol__negotiator_html_ae24b3bd8550a2f9ab0d728cb1832d4f5"><div class="ttname"><a href="classipc_1_1transport_1_1Protocol__negotiator.html#ae24b3bd8550a2f9ab0d728cb1832d4f5">ipc::transport::Protocol_negotiator::operator=</a></div><div class="ttdeci">Protocol_negotiator &amp; operator=(const Protocol_negotiator &amp;src)</div><div class="ttdoc">Copy-assigns *this to be equal to src.</div></div>
<div class="ttc" id="aipc__core_2src_2ipc_2transport_2error_8hpp_html"><div class="ttname"><a href="ipc__core_2src_2ipc_2transport_2error_8hpp.html">error.hpp</a></div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1error_html_adfef15ef4e76cc55d652fbd9c2797297a41cb789a6a5da26e1f72139206cb9adf"><div class="ttname"><a href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a41cb789a6a5da26e1f72139206cb9adf">ipc::transport::error::Code::S_PROTOCOL_NEGOTIATION_OPPOSING_VER_INVALID</a></div><div class="ttdeci">@ S_PROTOCOL_NEGOTIATION_OPPOSING_VER_INVALID</div><div class="ttdoc">In protocol negotiation, opposing side sent invalid version value (not positive, not a number,...</div></div>
<div class="ttc" id="anamespaceipc_1_1transport_1_1error_html_adfef15ef4e76cc55d652fbd9c2797297a594bf33052a89403c734f24428007c80"><div class="ttname"><a href="namespaceipc_1_1transport_1_1error.html#adfef15ef4e76cc55d652fbd9c2797297a594bf33052a89403c734f24428007c80">ipc::transport::error::Code::S_PROTOCOL_NEGOTIATION_OPPOSING_VER_TOO_OLD</a></div><div class="ttdeci">@ S_PROTOCOL_NEGOTIATION_OPPOSING_VER_TOO_OLD</div><div class="ttdoc">In protocol negotiation, opposing side reported its newest protocol version is even older than the mo...</div></div>
<div class="ttc" id="anamespaceipc_1_1transport_html"><div class="ttname"><a href="namespaceipc_1_1transport.html">ipc::transport</a></div><div class="ttdoc">Flow-IPC module providing transmission of structured messages and/or low-level blobs (and more) betwe...</div><div class="ttdef"><b>Definition:</b> <a href="asio__local__stream__socket_8cpp_source.html#l00031">asio_local_stream_socket.cpp:32</a></div></div>
<div class="ttc" id="anamespaceipc_1_1util_html_ae6ac47812a90d1287c61e0b7de7bc4f5"><div class="ttname"><a href="namespaceipc_1_1util.html#ae6ac47812a90d1287c61e0b7de7bc4f5">ipc::util::String_view</a></div><div class="ttdeci">flow::util::String_view String_view</div><div class="ttdoc">Short-hand for Flow's String_view.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00115">util_fwd.hpp:115</a></div></div>
<div class="ttc" id="anamespaceipc_html_a4ccdeed058222c635745a4dc830e99f7"><div class="ttname"><a href="namespaceipc.html#a4ccdeed058222c635745a4dc830e99f7">ipc::Log_component</a></div><div class="ttdeci">Log_component</div><div class="ttdoc">The flow::log::Component payload enumeration containing various log components used by Flow-IPC inter...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00322">common.hpp:323</a></div></div>
<div class="ttc" id="anamespaceipc_html_aa3192e586cc45d3e7c22463bf2760f89"><div class="ttname"><a href="namespaceipc.html#aa3192e586cc45d3e7c22463bf2760f89">ipc::Error_code</a></div><div class="ttdeci">flow::Error_code Error_code</div><div class="ttdoc">Short-hand for flow::Error_code which is very common.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00298">common.hpp:298</a></div></div>
<div class="ttc" id="aprotocol__negotiator_8hpp_html"><div class="ttname"><a href="protocol__negotiator_8hpp.html">protocol_negotiator.hpp</a></div></div>
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